Everything DoseRank tracks on the green tea extract shelf — Caffeine Anhydrous, EGCG and Green Tea Extract. The category itself is never ranked: 66 products get scored the moment you say what you want them to do.
How to read the scores
This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →
Answer a few questions about your goals, habits, stack, and budget. Then, DoseRank will find the products that best match your needs based on your answers. It's free and only takes 60 seconds! No account is required.
A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.
Questions
Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value — computed for the goal you picked, across this category's products. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.
Start with a goal, not a brand
Browsing green tea extract supplements without a goal makes no sense — caffeine anhydrous, egcg and green tea extract do different jobs, and “best” flips depending on which job you're hiring for. These are the 44 health outcomes that matter for this category. Pick yours, and the full evidence-ranked shelf loads for that goal alone.
Fat oxidationUse of fat as an energy source.66 rankedModerate-strong
Reaction timeSpeed of physical or cognitive response to a stimulus.5 rankedStrong
Perceived exertionSubjective difficulty of physical effort.5 rankedStrong
AlertnessWakefulness and readiness to respond.11 rankedStrong
Antioxidant capacityMeasured ability to counter oxidative stress.66 rankedStrong
Blood pressureArterial pressure; direction of benefit depends on baseline status.66 rankedModerate-strong
Fasting blood glucoseBlood glucose after fasting.61 rankedStrong
Platelet functionPlatelet activity relevant to clotting and bleeding.2 rankedModerate-strong
Asthma controlDegree to which asthma symptoms and exacerbations are minimized.2 rankedLimited
Endothelial functionAbility of blood vessels to dilate and respond normally.20 rankedStrong
Attention and concentrationAbility to sustain and direct focus.6 rankedModerate-strong
Oxidative stress biomarkersLaboratory indicators of oxidative damage or redox imbalance.13 rankedModerate-strong
EdemaSwelling due to excess fluid accumulation.6 rankedModerate-strong
Endurance performanceAbility to maintain effort over a prolonged duration.6 rankedStrong
ThermogenesisHeat production and metabolic energy expenditure.11 rankedStrongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best green tea extract supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 66 products against that goal's trials.